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s <br /> i <br />! ATC Associates Inc. <br /> Quality Assurance/Quality Control Plan <br /> Revised March 1998 <br /> Water level data collected from the wells will be. used to develop a groundwater contour map for <br /> the project site. Groundwater flow will be estimated to be perpendicular to equipotential lines' <br /> drawn on the map. <br /> T <br /> 10.0 WELL DEVELOPMENT PROTOCOL <br /> Groundwater monitoring wells will be surged and developed prior to setting the surface seal. <br /> Approximately 10 times the volume of water in the casing will be withdrawn if.possible. Casing <br /> volumes will be calculated in the following manner: <br /> VOLUME OF,SCHEDULE',i40 PVA.. PIP E ' " <br /> .� <br /> eezaear <br /> D (snl:h@5} 0 R -01., <br /> . <br /> Dtameter {117C <br /> ;w,¢ Ga1/finear f et` <br /> 2 2.067 0.17 <br /> 4 4.026 0.66 <br /> VOLUME <br /> OF OPEN BOREHOLE AND ANNULAR'SPACE BETWEEN CASlNG.AND <br /> tk s «v s.c,ad -- -e€aeac�F¢ di ,:".:_. ' f °fe x P iiv <br /> Hale Dtarneterr ,ValumelLlnear Feet of Hole Nominal} & l;VnitintelLiruear Feet of <br /> £atinc <br /> __ 9nr <br /> tnches . r CasingI. ! Annular Space <br /> ,fig a,�i� 'a9 <br /> hS§ �prla rn°n¢83;g�h",aha@yeaL .s:E �,"a <br /> .us „.. ' h8@�ISBa¢w:&@"°' eBaE aF .(tnch gesl <br /> Mk, ,�� lai i''.{�illhlO�Fe t a¢n���'•F'�"',b�@t�'gr?'� %.3a1 G21�Q[i$ " a {iU�71Ca� et <br /> ._. 6 � ��Gallons <br /> 7.25 2.14 0.29 2 1.91 0.26 <br /> 8.25 2:78 0.37 2 2.55 0.34 <br /> 10.25 4:29 0.57 2 4.06 0.54 <br /> 10.25 4:29 0.57 4 3.46 0.46 <br /> 12.25 6.13 1 0.82 1 4 1 5.30 1 0.71 <br /> Annular volumes will be multiplied by 30%to account for porosity of filter pack. <br /> If the aquifer is slow to recharge, development will continue until recharge is too slow to <br /> practically continue. The volume of water produced versus time will be recorded. <br /> W:\Admin\Shells\QAQC-9S.DOC <br /> 9 <br />